Investigation of the influence of human upper limb movement on visual/force illusion

研究成果の概要（和文）：本研究では，大きさ重さ錯覚現象に注目し，人間の力感覚の獲得と上肢運動の関連を測定した．錯覚実験から，持上げ運動を行う際に利き手と比べると非利き手の方が錯覚発生率の上昇傾向が確認され，さらに持上げ高さを低くした場合には，錯覚発生率の低下傾向を確認できた．また，実空間での挙錘運動を行い，マグニチュード推定法によって運動距離や関節抑制の有無などの提示条件を与え，上肢運動と力感覚の獲得の関係を調べた． 研究成果の概要（英文）：In this study, measurements of size-weight illusion in real environment have been made with using a real time multi-camera system. Results of the lifting height, velocity and acceleration of the bottles are computed and an interesting relationship between the motion information and the rate of illusion occurrence are analyzed. In the weight lifting experiments, subjects evaluated their perceptions of the lifted weight by the magnitude estimation method. Psychometric and psychophysical magnitude functions were computed according to subject’s evaluation results. The slope of the psychometric function and the modality characteristic exponent were quantitatively analyzed for our experimental conditions. The results indicate that these quantities increase proportionally to lifting height. The results of this study demonstrate that weight perception in human is closely related to the motion of the upper limb.研究種目：基盤研究（C）; 研究期間：2009～2011; 課題番号：21500208; 研究分野：総合領域; 科研費の分科・細目：情報学・感性情報学・ソフトコンピューティン